In 1964, low level aeromagnetic surveys at Renison posed challenges not encountered in previous such surveys by the Bureau of Mineral Resources. Magnetic anomalies of hundreds and even thousands of nanotesla were much larger than any previously measured, and none of the topography previously flown was as extreme as that typical of western Tasmania.
There are plenty of places where it is recorded that Jacques Arago spent some time in the mental hospital run by Esprit Blanche and his wife in Montparnasse. That, however, is as far as the information goes. We do not know why he was consigned to the hospital, when this happened or how long he remained incarcerated. But we do, al least, have his own account of the experience.
In 1932 Jacques Arago wrote an account of his time in the mental hospital of Dr Esprit Blanche for the short lived journal Paris ou le Livre des Cent-et-Un (v.4, 197 – 226,). The original text reproduced hereis followed by an English translation
Why are so many Americans so angry? They have a beautiful country with abundant natural resources, and live under a constitution that guarantees liberties that few other peoples possess. The middle classes live lives of peace and prosperity that are the envy of the world. Yet so many seem so very angry